Home / 54,149,811.80-81,216,002.10-15,802,338.20

Finding the Fourth Proportional to 54,149,811.80, 81,216,002.10 and 15,802,338.20

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Solution

The fourth proportional to 54,149,811.80, 81,216,002.10 and 15,802,338.20 is: 23,700,963.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,149,811.80 : 81,216,002.10 = 15,802,338.20 : x
  2. Step 2: Convert to fraction form
    54,149,811.80/81,216,002.10 = 15,802,338.20/x
  3. Step 3: Cross multiply
    54,149,811.80x = 81,216,002.10 × 15,802,338.20
  4. Step 4: Simplify right side
    54,149,811.80x = 1,283,402,732,436,110
  5. Step 5: Solve for x
    x = 1,283,402,732,436,110/54,149,811.80
  6. Step 6: Final answer
    x = 23,700,963.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.